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Class Demonstrations
The initial demo that you give students at the start of
a unit is often one of the best-remembered events -- in
cognitive science this is called the Primacy Effect. Demos
set the stage for learning and can act as "anchors" to
which students connect other ideas and that can bring
up their prior knowledge. Movies 1-3 were edited for side-by-side-by-side
comparison and show the first demonstrations that one
tech ed and two science teachers gave their students before
they started designing model parachutes.
Compare them. What are similarities and differences do
you notice among them? What details does each teacher
emphasize or skip over? What underlying goals might be
driving them to include what they leave in and out in
their demonstrations, their questions and order of presentation?
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Design In The Classroom
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© 2004 Georgia Tech Research Corporation
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